code: def list_all() -> List[str]:
      """List the name of all the registered tokenizers
  
      Returns
      -------
      token_name_list
          Names of all the tokenizers
      """
      return TOKENIZER_REGISTRY.list_keys()
  
imports: import abc
  import itertools
  from ..vocab import Vocab
  from ...utils.registry import Registry
  from typing import List, Tuple, Union, NewType, Optional
label_desc: Use image node_id 7 for calling a global function with example usage: list_all() and returns: TOKENIZER_REGISTRY